Kelson p



\N0 Model.)

N. P. BRADISH.

FENCE MAKING MACHINE.

Patented Mar. 31. 1885.

WITNESSES INVENTOR rrnn Smarts ATENT .rrien,

NELSON P. BRADISH, OF JERSEYVILLE, ILLINOIS, ASSIGNOR OF ONE-HALF TOMOSES OOOKRELL, OF SAME ILAOE.

FENCEJl/IAKENG MACHINE.

SPECIFICATION forming part of Letters Patent No. 314:,61-6, dated March31, 1885.

Application filed August 15, 1884. (N model.)

To aZZ whom it may concern.-

Be it known that I, NELSON P. BRADIsH, of Jerseyville, in the county ofJersey and State of Illinois, have invented a new and ImprovedFence-Making Machine; and I do hereby declare that the following is afull and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in fence-making machines of thatclass employed in the manufacture of fencing which consists of wooden orother palings united by wires twisted together so as to form acontinuous I 5 web.

One of the objects of my invention is to provide means for operating thewire-twisters by a reciprocating hand motion.

A still further object of my invention is an improved means forregulating the tension put upon the wire as it is delivered from thecoil to the twister.

With these ends in view my invention consists in certain details ofconstruction and com- 2 5 binations of parts, hereinafter fullydescribed,

and pointed out in the claims.

In the drawings, Figure 1 is a plan view of that part of the machinecontainingmy improvement, and Fig. 2 is a rear elevational 0 view of thesame.

In both figures, A represents the frame upon which is supported theoperative part of the machine. I) b, &c., are wire-twisters, adapted torevolve in bearings c, and actuated by small 3 5 gear-wheels d, whichengage with a toothed rack, e, which is also provided with teeth uponits rear vertical side, adapted to engage with teeth upon the face of asegmental wheel, f, provided with a long hand-lever, 9, said segmentalwheel being fulcrumed upon a stud, h, secured to the top side of across-bar, t. At the lower part of the rear of the frame are twocrossbars, J, which support vertical bars It, between which arejournaled arbors Z, upon which 4.5 are mounted expanding reels m, one ofwhich is shown in section taken in the line of its axis, Fig. 1, saidreels being adapted to carry the coils of wire, as exhibited in thedrawings. By reference to Fig. 1, in wliich two of the vertical bars kare shown in section taken in the line of the axes of the reel-arbors Z,it will be observed that said reel-arbors are provided with conical endsa, adapted to revolve in similarly formed hearings in the vertical barsk. It will also be further noticed that all the sup- 5 5 porting-barsit, except the two outside ones, are movable about the pivots o in theplane of the axes of the reel-arbors, and are adjustable in said planeby thumb-screws p, so as to impinge upon the ends of the reelarbors 6:)with such force as to resist their rotation to such a degree as willproduce the requisite tension upon the wire between the reels and thetwisters. It will be still further noticed that the rear upper part ofthe frame A is pro vided with a cross-bar, q, adapted to support thefree ends of the movable bars it against the tensile strain of the wire,and also that the rack e is retained in position by small flange rollersr.

The details of my device being as above described, its operation is asfollows: The coils of wire being mounted upon the reels, as shown in thedrawings, and the ends of the wires passed through the holes in thetwisters to the palings, and the thumb-screws tightened up so as toafford such resistance to the rotation of the reel-arbors as to put therequisite tension upon the wire, the hand-lever g is operated asindicated by the arrows'in Fig. 1, each stroke giving a similar andsimultaneous rotary motion to all the twister-s, the number of turnsdepending upon the length of the stroke, which is of course controlledby the operator. Now, it will be observed that as the reels are separatefrom the twisters the rotation of the latter will cause a twist betweenthem and. the reels; but as two revolutions of the twisters are the mostever required, when the hand-1ever is at one extremity of its stroke.the wires are so threaded through the eyes of the twisters that there isa twist of one turn between the twister and the coil, and that twist isin the opposite direction to that in which the twister is about to berotated. Consequently the first revolution of the twister removes thetwist between itself and the coil, and the second re- 7 news it in theopposite direction, so that while a twist of two turns may be given tothe wires between thc palings there can never be a twist of more thanoneturn between the twister and the coil, which, owing to the distancebetween the latter and the twister, is in no degree detrim'ental.

' Having fully described my invention, whatl claim as new, and desire tosecure by Letters Patent, is

1. In a fence-making machine, the combination, with the wire-twistersI), provided with gear-wheels d, of the actuating mechanism described,consisting, essentially, of a toothed rack, e, and segmental gear f,provided with a hand-lever, g, allof said parts constructed,cornbined,and adapted to operate substantially as andfor the purpose setforth.

2. In a fence-making machine, the combination, with the reels m, securedupon arbors Z, of the conical ends at and supporting-bars k, providedwith sockets adapted to receive the conical ends of the arbors Z, andpivotally secured at their lower ends to the frame of the machine so asto vibrate in aplane coincident with the axes of the reel-arbors, andcontrolled as to the force with which they impinge upon the ends of saidarbors by thumb-screws 19, substantially as and for the purpose setforth.

In testimony that I claim the foregoing I have hereunto set my hand this31st day of 0 Witn esses A. NEWTON, O. HAMILTON.

